The utilization stage was the longest stage of the life cycle but it
is also the simplest. The only two processes in this stage are
packaging the finished product and installing it. The emissions
resulting from transporting the finished product to different customers
all over the United Statedwas treated in a manner similar to
the emissions resulting from transporting the raw materials to the
manufacturing facility from the suppliers. Using customer data
from the manufacturer, the appropriate masses transported and
distances traveled were entered into the software package. Table 3
shows the product sales by location, including the number of rolls